National Audubon Society Birds of North America: A Guide Review
10,000 Birds
JUNE 1, 2021
The rest of Mexico is not included, nor is Hawaii (which isn’t in North America, after all, but has been accepted as part of the American Birding Association area). Interestingly, Chestnut-collared Longspur does appear under its brand-new official name, Thick-billed Longspur, though the description underneath uses the old name.
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